Go to Tools | Options & select the Calculation tab. Make sure either
Automatic or Automatic except tables is selected - not Manual

Alternatively, you can leave Manual checked and, when you want to
recalculate your spreadsheet, press the F9 key


"talil" wrote:

I need to know how to get excel to automatically compute the cell values when
i'm changing it to a different number ex: My point threshold is 400, i cahnge
it to 350, how do i make excel automatically convert the right average when
any number is changed